Improvement in steam water-heaters



UNITED STATES JAMES ARGALL, OF MINERAL POINT, VISOONSIN.

IMPROVEMENT IN STEAM WATER-HEATERS.

Specification forming part of Letters Patent No. 116,792, dated J uly` 11, 1871.

To all whom it may concern:

Be it known that I, JAMES ARGALL, of the city of Mineral Point, in the county of Iowa and State of Wisconsin, have invented a new and Improved Steam Water-Heater, Attemperator, and Purifier, which I call and designate as Argalls Steam Water-Heater, Attemperator, and Purifier 5 and I do hereby declare that the following is a full, clear, and exact description of the construction and operation of the same, which consists of two parts, reference being had to the annexed drawing making a part of this specilication.

Figure 1 is a longitudinal section on the-line a' .fr of Fig. 3. Fig. 2 is a front view with the plate removed. Fig. 3 is a rear view with cover removed. Fig. 4 is a sectional view on the line g/ y of Fig. 1. Fig. 5 is a detached view of the spider. Figs. 6 and 7 are sectiona-l views of the attemperator.

The heater is constructed as follows: It cony sists of the outside shell or cylinder A1, which is made either of boiler-iron, cast-iron, or other suitable material. The front end of this cylinder is inserted in and encompassed by the flange al of the cylindrical steam-box B1, and iirmly riveted thereto. The rear end of cylinder A1 is similarly inserted in and encompassed by and riveted to flange a2 of the cylindrical steam-box B2, which said steam-box is the coiuiterpart of steam-box B1. When made of cast-iron these said several parts are cast as in one piece. Inside of cylinder A1 is cylinder A2, which is constructed of the same material and is of the same length, but two inches less in diameter. The front of said cylinder A2 is tted within the base of the angular ring c, which said base is furnished with a shoulder, wherein said cylinder rests and to which it is iirmly riveted by attaching cylinder A2 to the base of ring c1. In this manner the perpendicular of said ring is projected outward in a hori- Zontal manner, thus forming iiange a2. The rear end of cylinder A2 is inserted in and encompassed by the ring c2, having also a shoulder, in which the end of the cylinder rests and to which it is firmly riveted. This cylinder works in cylinder A1 in a telescopic manner, and when ready for use the flange c2 overlaps and rests on the base or shoulder d1 of the steam-box B1, and bringing thereby the rear end of cylinder A2 on a level with the shoulder or base d2 of box B2, and

over which is placed a rubber gasket, secured by the ring c3, rendering the same water-tight and forming the cylindrical water-chamber O1. rlhe water-chamber O2 is formed by conjoining cylinders A3 A, cylinder A3 being four inches and cylinder A4 six inches less in diameter than cylinder A1, but of the same length. Cylinders A2 A4 are `joined at their ends by the rings c4 c5, which said rings are provided with the cam-like projections e, whose oiiice and purpose are to keep separate and equidistant the cylindrical water-'chamber C2 from 4the cylindrical waterchamber G1 and from the central cylinder O3, thus forming the steam-chambers D1 D2. The under side of the cammed rings c4 c5 is of a T- shape, in the shoulders of which rest the cylinders A3 A4, and secured thereto by riveting; or they can be conjoined and secured in the same manner as cylinders A1 A2, thereby enabling of their being readily taken" apart and cleaned. The central cylinder G3 consists of a single cylinder, sunk in and riveted to the stay-rin gs cb c1. The front end ofthe cylinder is covered with the circular cap t', the rear end being open, as seen by L. Other cylindrical chambers, constructed in the manneras hereiiibeiore described, can be substituted in lieu of cylinder O2, if thought necessary. These several cylinders, sliding, the one into the other, in a telescopic manner, are secured fast in position on the front side by means of the spider K1 and the bolt F, which extends throughout the length of the cylinders and through the center of the spider K1, where it is secured by the nuto. Spider K is further secured by the stud-bolts n1 u2 n3 n4, which screw in the center of the cams e ot' rings c4 c5,- and also by the bolts r; on the rear side`they are secured by the circular cap P, which cap extends to the outer edge of cylinder A3, thereby covering the steam-passage D2. Over this is placed the spider K2, fastened in the same manner as spider K1, the bolt F passing through the center and secured by the nut o2. Gap P has two apertures, s1 s2, to admit ofthe escape of the steam entering into the steampassage D2. The object of stopping up the said passage and retarding and forcing the steam through said apertures is to more thoroughly economize and utilize its caloric. The cylindrical steam-boxes B1 B2 are covered by the circular plates Fl F2, which are securely bolted thereto and rendered perfectly tight by rubber gaskets.

Into steam-box B1 opens the receiving-pipe G1; through its cover I also passes the water-pipe H, which extends through the said steam-box and screws and opens into the water-chamber G2. The box B2 is furnished at its lower end with the stop-cock L1 for the escape of condensed water, and at the side with the steam-escape pipe G2, being the counterpart of pipe G1. The waterchambers C1 C2 are connected by means of the return-pipe m, which screws into the same by a right-and-left screw-thread. At the lower front end of cylinder A1 is attached and iirmly riveted the circular reservoir on deposit-box O. The mouth of reservoir O is covered by a circular plate, being either of a flat or conical shape, and centering in the stop-cock L2. To cylinder A1 is also attached, at its upper front end, the pipe R, leading into the boiler and connecting the waterchambers of the heater with the boiler.

The attemperator M consists of the cylindrical steam-chamber, which is constructed in the sanie manner as water-chamber C2 of the heater, its size and dimensions being dependent on the sized tank in which it is intended to be used. At its upper end, and crossing it transversely, is distributing-pipe g', in the center of-which is the receiving-pipe c, which connects with the exhaust-steam pipe G2 ofthe heater. At the lower part, if necessary, is another pipe, the counterpart of pipe g', and also the escape-pipe t, which faces toward the outside.

The manner in which my machine is operated is as follows: The heater is attached to the engine so that the exhaust steam therefrom passes into the receiving-pipe G, by which it is conducted into steam-box B1, which same it fills instantaneously, and whence it passes, through the steam-chambers D1 D2, into the exhaust-steam box B2, from where it escapes either through stop-cock L1 as condensed water or through escape-pipe G2. The water-pipe H being connected with the pump, the water is forced through it into the water-chambers G2, from where it passes into the water-chainber U1 through the returnpipe m'. As a consequence, after the water in chamber C1 has risen to a level with chamber C2, both will equally till together until water-chamber G1 is full, the water-course being indicated by the straight arrows. After water-chamber C1 is full, the water, which is now boiling, is forced l through pipe lt into the boiler, as will be seen.

My heater consists of a series of concentric cylinders, the one inclosing the other in such a inanner as to leave an inch space, (more or less, as is advisable or thought necessary,) forming thereby the alternate cylindrical water and steamchambers G1 C2 and D1 D2. The attemperator is placed in the water-tank so that the escape-pipe t, which may be furnished with a safety-valve, projects through on the outside. The receivingpipe c is then connected with the exhaust-pipe G2 ofthe heater, through which the exhaust steam from the heater passes into the distributing-pipe g', and from there is conducted into the cylindrical steam-chamber M, which same it instantaneously iills, and after expendin g its caloric escapes through pipe t as condensed water or very exhaust steam.

Having thus described my invention, I claim as new and desire to secure by Letters Patent- A steam water-heater, consisting of a series of concentric cylinders, with the parts connected therewith, constructed and arranged substantially as and for the purposes herein shown and described.

Witnesses:

E. P. WEBER, R. Clins. Evans.

JAMES ARGALL. 

